Executive Summary

[{'type': 'paragraph', 'content': 'The TYPO3 extension "E-Mail MFA Provider" (mfa_email), version 2.0.0 and below, has a vulnerability where it fails to properly reset the generated MFA code after a successful authentication.'}, {'type': 'paragraph', 'content': 'This flaw allows an attacker to bypass multi-factor authentication (MFA) on future login attempts by submitting an empty string as the MFA code to the extension’s MFA provider.'}, {'type': 'paragraph', 'content': 'The vulnerability is exploitable only if the "E-Mail MFA Provider" is not the default MFA provider and the user has at least one other MFA provider enabled.'}] [1]

Useful 0 Not Useful 0

Impact Analysis

This vulnerability can lead to a high-severity security risk by allowing attackers to bypass MFA protections on affected TYPO3 installations.

An attacker could gain unauthorized access to user accounts by submitting an empty MFA code, potentially compromising sensitive data and system integrity.

Since MFA is a critical security control, bypassing it weakens the overall authentication process and increases the risk of account takeover.

Useful 0 Not Useful 0

Compliance Impact

I don't know

Useful 0 Not Useful 0

Detection Guidance

There is no specific information provided about detection methods or commands to identify this vulnerability on your network or system.

Useful 0 Not Useful 0

Mitigation Strategies

[{'type': 'paragraph', 'content': 'To mitigate this vulnerability, users are advised to uninstall and delete the vulnerable TYPO3 extension "E-Mail MFA Provider" (mfa_email) versions 2.0.0 and below.'}, {'type': 'paragraph', 'content': 'Since the extension author did not provide a timely security fix, it is recommended to seek alternative MFA extensions from the TYPO3 Extension Repository.'}, {'type': 'paragraph', 'content': 'Additionally, users should follow the TYPO3 Security Guide recommendations and subscribe to the typo3-announce mailing list for updates.'}] [1]

Useful 0 Not Useful 0